Grizzly H8259 owner manual Symptom Possible Cause Possible Solution

Symptom	Possible Cause		Possible Solution
Vibration noise	1.	Dented fan cover on motor.	1.	Replace or adjust fan cover. Inspect motor fan and
while machine				replace if damaged.
is running; noise
remains constant
when speed is
changed.
Motor is running but	1.	Belt is loose, broken, or has come off pul-	1.	Inspect belt and tighten, reinstall, or replace if dam-
spindle is not turn-		leys.		aged.
ing.
Excessive vibration.	1.	Workpiece mounted incorrectly.	1.	Re-mount workpiece, making sure that centers are
				embedded in true center of workpiece.
	2.	Workpiece warped, out of round, or is	2.	Cut workpiece to correct, or use a different
		flawed.		workpiece.
	3.	Spindle speed is set too fast for mounted	3.	Reduce the spindle speed.
		workpiece.
	4.	Lathe is resting on an uneven surface.	4.	Shim or adjust feet to remove any wobbles.
	5.	Motor mount bolts are loose.	5.	Tighten motor mount bolts.
	6.	Belt is worn or damaged.	6.	Replace belt.
	7.	Spindle bearings are worn.	7.	Replace spindle bearings.
Chisels grab or dig	1.	Tool rest set too low.	1.	Set tool rest higher. See Page 20 for how to prop-
into workpiece.				erly set the tool rest height.
	2.	Tool rest set too far from workpiece.	2.	Move the tool rest closer to the workpiece. See
				Page 20 for the proper workpiece/tool rest clear-
				ance.
	3.	Wrong chisel/tool being used.	3.	Use the correct chisel/tool; educate yourself by
				reading books, trade magazines, or seeking help
				from an experienced lathe operator.
	4.	Chisel/tool dull.	4.	Sharpen or replace the chisel/tool you are using.
Bad surface finish.	1.	Wrong spindle speed.	1.	Use trial-and-error to find a better spindle speed.
	2.	Dull chisel or wrong chisel being used for	2.	Sharpen chisel or try a different chisel.
		the operation.
Tailstock moves.	1.	Tailstock mounting bolt loose.	1.	Tighten.
	2.	Too much clamping pressure applied by	2.	Apply less clamping pressure with tailstock.
		tailstock.
	3.	Bed surface is oily or greasy.	3.	Clean bed surface to remove oil/grease.
Can't remove	1.	Tailstock barrel had not retracted all the	1.	Turn the barrel handwheel until it forces taper out of
tapered tool from		way back into the tailstock.		barrel.
tailstock barrel.	2.	Debris was not removed from taper before	2.	Always make sure that taper surfaces are clean.
		inserting into barrel.

-26- H8259 10" x 18" Benchtop Lathe